5-Ethynyl-1-methyl-1H-imidazole
5-Ethynyl-1-methyl-1H-imidazole (CAS 71759-92-7), a heterocyclic organic compound with the molecular formula C6H6N2 and a molecular weight of 106.13 g/mol, is supplied by Tech Serve Solutions. This chemical serves as a valuable building block in organic synthesis, particularly for the construction of more complex molecules. Its imidazole core and ethynyl functional group offer versatile reaction sites for various chemical transformations.

Organic Synthesis Intermediate
Utilised as a key intermediate in the synthesis of diverse organic compounds. The presence of the ethynyl group allows for participation in various coupling reactions, such as Sonogashira coupling, enabling the formation of carbon-carbon bonds.
Pharmaceutical Research
Serves as a precursor or building block in the development of novel pharmaceutical agents. Its heterocyclic structure is a common motif found in many biologically active molecules, making it a target for medicinal chemistry research.
Materials Science
The ethynyl functionality can be employed in polymer chemistry for the creation of novel polymeric materials with specific electronic or optical properties through appropriate polymerisation techniques.
| Molecular weight | 106.13 |
|---|---|
| Empirical formula | C6H6N2 |
| Assay | 97% |
| Boiling point | 116 °C/25 mmHg(lit.) |
| Density | 1.045 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.5490(lit.) |


Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H318Causes serious eye damage
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 104 °C / 219.2 °F |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-37/38-41 |
| Safety statements (S) | 26-36/39 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 5-Ethynyl-1-methyl-1H-imidazole used for?
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5-Ethynyl-1-methyl-1H-imidazole is primarily used as a building block in organic synthesis and in pharmaceutical research for developing novel compounds and potential drug candidates.
What are the CAS number and formula for 5-Ethynyl-1-methyl-1H-imidazole?
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The CAS number is 71759-92-7, and the molecular formula is C6H6N2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 5-Ethynyl-1-methyl-1H-imidazole with an assay of 97%. This product is intended for laboratory and research use and is not represented as USP, BP, EP, or any other pharmacopoeia grade.
How should 5-Ethynyl-1-methyl-1H-imidazole be handled safely?
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5-Ethynyl-1-methyl-1H-imidazole is classified as Dangerous. It may cause serious eye damage, skin irritation, and respiratory irritation, and is harmful if swallowed. Appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection, must be used. Always consult the Safety Data Sheet (SDS) before handling.
Can Tech Serve Solutions export 5-Ethynyl-1-methyl-1H-imidazole?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 5-Ethynyl-1-methyl-1H-imidazole, and can cater to international export requirements.
How can I request a quote or sample for 5-Ethynyl-1-methyl-1H-imidazole?
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To request a quote or a sample, please contact our sales team through the website or by phone, providing the product name and CAS number (71759-92-7).
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